In Check for updates window, you might see an error when trying to check for updates. Note the error message (or lack thereof) and click the corresponding link below to find out more.
Error ID: DUF-28362
Reason: This means that NotePad Plus, can't be upgraded in its current directory.
Fix: First, check which version of NotePad Plus you're running by looking at the version number in the Check for updates window. If the box lists "NotePad Plus" then the most likely reason for this failure is that the NotePad Plus files have been moved out of their default installation location.
Error ID: DUF-46306
Reason: Error DUF-46306 means the update was downloaded successfully, but it failed to install properly.
Fix: Try restarting your computer.